Chapter 7 understanding output

What is Output

-Output is data that has been processed into a useful form.

-An output device is any type of hardware component that conveys information to one or more people.

Display Devices

-A display device visually conveys text. graphics, and video information 

-A monitor is packaged as a separate peripheral.

Liquid crystal display (LCD) uses a liquid compound to present information on a display device.The quality of an LCD monitor or LCD screen depends primarily on

-Resolution 

-Response time

-Brightness 

-Dot pitch

-Contrast ratio

Resolution is the number of horizontal and vertical pixels in a display device.

Plasma monitors are display devices that use gas plasma technology and offer screen sizes up to 150 inches.

HDTV is the most advanced form of digital television.

A CRT monitor is a desktop monitor that contains a cathode-ray tube.

Printers

A printer produces text and graphic on a physical medium.

-A non-impact printer forms characters and graphics on a piece of paper without actually striking the paper.

-An ink-jet printer forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper.

-A multi-function peripheral (MFP) is a single device that prints, scans, copies, and in some cases, faxes.

-A thermal printer generates images by pushing electrically heated pins against the heat-sensitive paper.

-A mobile printer is a small, lightweight, battery-powered printer that allows a mobile user to print from a, notebook computer, smart phone, or other mobile device.

-A label printer is a small printer that prints on adhesive-type material

-Plotters used to produce high-quality drawings

-Large-format printers create photo-realistic quality color prints on larger scale

Speakers, Headphones, and Earbuds

An audio output device produces music, speech, or other sounds.

-Headphones are speakers that cover of the ear.

-Earbuds (also called earphones) rest inside the ear canal.

Other Output Devices

An interactive whiteboard is a touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen.